Songbirds communicate with unparalleled acoustic complexity and tremendous variation among species. On Monday, June 16, from 7 – 8:30 pm, Bruce Byers, who studies the biological and cultural evolution of birdsong, will introduce the multidimensionality of songbird singing and some of the discoveries by scientists like him who study both the inherited and learned components of song. He will consider how songs function in the social lives of songbirds, how song features might correlate with fitness, and whether variability correlates with differences in ecology and life history. He will also include suggestions to improve your listening skills. Fee: Free Arboretum member, $10 nonmember. Register at https://my.arboretum.harvard.edu/Info.aspx?EventID=1. Meet at the Hunnewell Building.